Free WebP Converter Online
Convert JPG, PNG, GIF, AVIF and BMP to WebP — processed locally in your browser, files never leave your device.
Drop images here or click to select
JPG, PNG, GIF, AVIF, BMP — multiple files supported
How to convert images to WebP
- Drop your JPG, PNG, GIF, AVIF or BMP files onto the converter — or click "Choose files" to browse.
- Adjust the quality slider per file. Quality 80–90 is the sweet spot for web images — significantly smaller file, near-identical look.
- Click Convert on a single file, or Convert all to process everything at once.
- Download files individually or click Download all to get a single ZIP archive.
Why WebP is the best image format for websites
WebP is a modern image format developed by Google in 2010, built to replace both JPEG and PNG on the web. It delivers smaller file sizes without visible quality loss — which means faster page loads, lower bandwidth costs, and better rankings in Google Search.
WebP vs JPG vs PNG vs AVIF — format comparison
| Format | Compression | File size vs JPG | Transparency | Animation | Browser support |
|---|---|---|---|---|---|
| WebP | Lossy + Lossless | 25–34% smaller | ✓ | ✓ | 97% |
| AVIF | Lossy + Lossless | 40–50% smaller | ✓ | ✓ | 93% |
| JPG | Lossy only | baseline | — | — | 100% |
| PNG | Lossless only | 40–60% larger* | ✓ | — | 100% |
* For photographic content. PNG can be smaller than JPG for graphics with flat colors.
A real-world example: a typical 500 KB JPG product photo becomes approximately 330 KB as WebP at quality 85 — a 34% reduction with no visible difference at normal viewing sizes. At the same quality, PNG would be around 800 KB.
Lossy vs lossless WebP — which to use
WebP supports two compression modes in a single format. Lossy WebP — the default here — works like JPG: it discards some image data to achieve much smaller files. At quality 85, the result is visually identical to the original for photographs, but 25–34% smaller. Lossless WebP keeps every pixel intact, like PNG, and still compresses about 26% better. Use lossless for logos, icons, screenshots, and any image you plan to edit further.
How WebP improves SEO and Core Web Vitals
Page speed is a direct Google ranking factor. Images are typically the largest assets on any web page — and the format you choose determines how fast they load. WebP directly improves LCP (Largest Contentful Paint), one of the three Core Web Vitals scores Google uses to evaluate page experience. According to Google's own data, the probability of a user bouncing increases by 32% when page load time goes from 1 to 3 seconds.
By switching your images from JPG to WebP, you reduce the total page weight by 25–34% without any design changes. For image-heavy pages — product galleries, blog posts, portfolios — this can cut several seconds off load time on mobile networks.
How to add WebP images to your website
The safest way to serve WebP is using the HTML <picture> element with a JPG fallback. Browsers that support WebP load the WebP version; older browsers automatically fall back to the JPG:
<picture> <source srcset="image.webp" type="image/webp"> <img src="image.jpg" alt="Description of the image"> </picture>
If you use Next.js, the built-in <Image> component serves WebP automatically with no extra configuration. In WordPress, plugins like ShortPixel or Imagify convert and serve WebP on the fly. On servers with direct config access, enable WebP via an .htaccess rewrite rule to serve .webp files whenever a browser supports the format.
When to keep JPG or PNG instead of WebP
- You need to support very old browsers (Internet Explorer, Safari before version 14) without adding a
<picture>fallback - The file will be uploaded to a platform that doesn't yet accept WebP (some print services, older stock photo sites, certain email clients)
- You're exporting a source file for further editing in software that doesn't support WebP — in that case, keep the PNG or high-quality JPG as your master file and convert to WebP for web delivery only